chicago, charleston, washington, d.c., new york city, all in the 40s this morning. and it's a shot of cool air that gets reinforced tonight into saturday morning. so, saturday, be ready for that early chill. >>> coming up on "gma," the surprising twist in the shocking home invasion case. the college student shot after stumbling into a stranger's home. was she secretly drugged? >>> also, how two couples' wedding nights ended in chaos. that shocking brawl. stop by walmart this saturday. wireless. take a one-minute demo of our new lg optimus zip. for every demo we'll donate one dollar to make-a-wish. up to one million dollars. visit one-minute-one-million-dot-com to find a participating walmart near you. i didn't want to change toothpastes. i already had a product that made my mouth feel clean. why am i going to go and change it? the first thing he recommended was that i use sensodyne. sensodyne helps with the sensitivity issues and at the same time it gives you the clean feeling. your mouth feels fresh. sensodyne satisfies the needs that i would look for in a toothpas